[Bf-blender-cvs] [5bf003db059] cycles_path_guiding: Fix principled hair test failure

[Brecht Van Lommel]

Commit: 5bf003db059a2cda71363aa452a98b666b9e3b95
Author: Brecht Van Lommel
Date:   Fri Sep 23 21:24:46 2022 +0200
Branches: cycles_path_guiding
https://developer.blender.org/rB5bf003db059a2cda71363aa452a98b666b9e3b95

Fix principled hair test failure

===================================================================

M	intern/cycles/kernel/closure/bsdf_hair_principled.h

===================================================================

diff --git a/intern/cycles/kernel/closure/bsdf_hair_principled.h b/intern/cycles/kernel/closure/bsdf_hair_principled.h
index dbef7a5cb5a..857b3fbf3a6 100644
--- a/intern/cycles/kernel/closure/bsdf_hair_principled.h
+++ b/intern/cycles/kernel/closure/bsdf_hair_principled.h
@@ -56,7 +56,7 @@ ccl_device_inline float delta_phi(int p, float gamma_o, float gamma_t)
 /* Remaps the given angle to [-pi, pi]. */
 ccl_device_inline float wrap_angle(float a)
 {
-  return fmodf(a + M_PI_F, M_2PI_F) - M_PI_F;
+  return (a + M_PI_F) - M_2PI_F * floorf((a + M_PI_F) / M_2PI_F) - M_PI_F;
 }
 
 /* Logistic distribution function. */